At approximately 00:10 on March 24th, 2011, the weather was overcast and the ceiling was around 8,000ft. I witnessed a bright light which seemed like a spotlight from above, the same style which might come from a helicopter, shine in a direct NNE-S trajectory with no sound or other such signals. actual GS coordinates are as follows: 42.527448,-83.706594 to 42.524803,-83.707028 was the visible flight path of suspected aircraft.